Earth's ancient 'sea'crets exposed, thanks to a geologist's 462 million-year-old find

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Earth's ancient 'sea'crets exposed, thanks to a geologist's 462 million-year-old find
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'Out popped a tiny tube with tentacles sticking out... which suddenly made it obvious that this site was much more important than we'd realized.'

steps into the world of Joseph Botting, one of the geologists behind the discovery, to reveal its far-reaching implications for our understanding of Earth's early life forms.

Since its discovery, many other similar Cambrian faunas have been found, leading to the term "Burgess Shale-type faunas." These include other iconic locations like Chengjiang in China. When the lockdown happened in 2020, I decided to have one more day of fieldwork and then write it all up. That day was mainly about tying up loose ends, which resulted in me trying to split some difficult layers that had been largely ignored until then.

As a result, it's a combination of leftover Cambrian-like animals and much more advanced-looking creatures like barnacles and possible cephalocarids. The soft tissues at Castle Bank include virtually all the external tissues, no matter how fine and fragile , and a range of internal organs from guts in several groups to neural tissue in a small arthropod.There may well be other tissues as well, like muscles, but these need to be confirmed in future work.

ii) The evolution of ecosystems during the Ordovician, which was a revolutionary time for community ecology. Of course, it can only tell us about this community because the Ordovician was marked by increasingly extreme ecological heterogeneity. But that in itself is a lot more than we had before.

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